| 主权项 |
1. A copolymer comprising:
(A) an unsaturated monomer having a carbosiloxane dendrimer structure represented by the following formula (1): wherein, Z is a divalent organic group; p is 0 or 1; R1 and R2 each independently represent a group selected from the group consisting of alkyl groups, aryl groups, and aralkyl groups, having 1 to 10 carbon atoms; and L1 is a silylalkyl group, in the case of i=1, represented by the following formula (2): wherein, Z and p are the same as defined above; R1 and R2 are the same as defined above; i is an integer ranging from 1 to 10 indicating a total number of generations of the silylalkyl group; Li+1 is a group selected from the group consisting of a hydrogen atom, alkyl groups, aryl groups, and aralkyl groups, having 1 to 10 carbon atoms, and the silylalkyl groups; however, in the case of i=c (where c is an integer ranging from 1 to 10 indicating the number of generations of the silylalkyl group), Li+1 is a group selected from the group consisting of a hydrogen atom, alkyl groups, aryl groups, and aralkyl groups, having 1 to 10 carbon atoms; and in the case of i<c, Li+1 is the silylalkyl group; and ai is an integer ranging from 0 to 3; and (B) an unsaturated monomer having at least one hydrophilic group in the molecule; the content of the unsaturated monomer having the carbosiloxane dendrimer structure being 35 to 50% by mass of the total monomer weight content in the copolymer. |
